mesa: Changes to 'master'

[Keith Packard]

 src/mesa/drivers/dri/i915/i915_tex_layout.c    |   16 ++--
 src/mesa/drivers/dri/i965/brw_tex_layout.c     |    6 -
 src/mesa/drivers/dri/intel/intel_mipmap_tree.c |   81 +++++++++++++++----------
 src/mesa/drivers/dri/intel/intel_mipmap_tree.h |   13 +++-
 src/mesa/drivers/dri/intel/intel_tex_layout.c  |    4 -
 src/mesa/drivers/dri/intel/intel_tex_layout.h  |    2 
 6 files changed, 75 insertions(+), 47 deletions(-)

commit diffs at http://gitweb.freedesktop.org/?p=mesa/mesa.git;a=summary

New commits:
commit dd1a868b74ac47ac26f600f2f1eb0dc3f535f31b
Author: Keith Packard <keithp at keithp.com>
Date:   Tue Dec 18 10:18:33 2007 -0800

    [INTEL] Fix 965 to use new centralized mipmap pitch function

commit a183efc132c8db1bb42525ac177ffff96f69a59b
Author: Keith Packard <keithp at keithp.com>
Date:   Mon Dec 17 22:43:48 2007 -0800

    [Intel] Centralize mipmap pitch computations.
    
    mipmap pitches must account for the device alignment requirements, which
    used to be fairly simple; just align to a 4-byte boundary. However, to allow
    textures to be drawn to under TTM, they now need to be aligned to a 64-byte
    boundary. Placing all of the alignment constraints in a single function
    allows this new constraint to be applied uniformly.
    
    There was some pitch constraining code in intel_miptree_create, but that was
    modifying the pitch long after the miptree had been layed out, so it only
    served to wreck the mipmap and cause rendering errors.